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#1 2007-12-03 18:40:37
- haruka-san
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- Registered: 2006-11-08
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Prove that
s²=((n∑fx²-(∑fx)²)/(n(n-1)))=c²[((n∑fd²-(∑fd)²)/(n(n-1)))]
Where c = class size and d = values of deviation
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